Apparatus for applying sealing material to containers



June 7, 1 938. 4.1. D. RElFNYbER APPARATUS FOR APPLYING SEALING MATERIAL TO CONTAINERS :s sheets-smetI 1l Filed Feb. 2, 1935 WELL JAW

BY x

WITNESS wfg June 7, 1938. J. D. REIFSNYDER 2,119,720

APPARATUS FOR APPLYING SEALING MTERIAL TO CONTAINERS 1 ATTORNEYS Patented June 7, 19%38 PPARATUS FOR APPLYING SEALING MA- TERIAL T0 CONTAINERS 'l James D. Reifsnyder, New York, N. Y., assignor to Lily Tulip Cup Corporation, New York, N. Y., a corporation oi' Delaware Application February 2, 1935, serial No. 4,640

35 Claims.

The present invention relates to apparatus for applying a thin coating of sealing material, such as paraflln or the like to containers, particularly containers made of paper or other fibrous ma'- terial, and has for its principal object to provide an apparatus o'f the indicated type which will be capable of automatically and quickly applying an even coating of the sealing material to the containers. Other objects of the invention and of details associated therewith will appear from the following specification.

The apparatus was primarily devised and is especially adaptedior'use in the sealing oi. containers made of paper or other brous material which are intended to be and which shall .have

been packed'- with commodities which are 'to be sold in this form to the consumer. Containers of the indicated type are usually made from. a

fairly heavy paper stock from which blanks have'` been cut to form the container bodies. The cut body blanks, after having adhesive material ap'- plied thereto, are formed into the proper shape ona forming mandrel, the adhesive material securing the edges of the bodies together. l".lhe bottom portions of thev containers which may be placed in position after the bodies are formed, or around which the body blanks may be formed, are usually spaced up from the bottom edges of the body portions of such containers so that protection is afforded the bottoms. The bottom edges of the containers are usually reinforced by turningover the bottom edge portions to form double layers of material at this point or by using bottoms having downwardly extending anges and turning over the bottom edge portions of the bodies to enclose such flanges, inA which case a triple layer of material is formed at the bottom edges of the containers. The indicated type of container is usually closed by a disc cover which snugly ts into an internal groove provided adjacent the upper edge of the container. The containers may be treated with paraiiin or .other suitable material capable of sealing the pores of the paper material oi' which the containers are constituted and rendering them impervious to' iluids. The frusta-conically shaped container having a smaller diameter at the base portionperiod without leakage. I of theinvention will be sufliciently understood (Cl. ill-46) forced into place in the mouth or open portions thereof so that the edges of the disc covers seat in the internal grooves provided adjacent the open ends of the containers. The upper end portion of the containers may then be rolled in any suitable manner so as to form a bead on the upper edges thereof which renders that portion of the containers sufcientlyrigidto withstand the strains or pressures to which they will be ordinarily subjected during the shipment -of the containers. In accordance with the present invention, the thus iilled containers are then fed into theapparatus Where sealing material such as parailin will be applied to the upper edge portions of the containers and to the outer edges of the covers there- Aof so that any space therebetween will be sealed,

thereby hermetically sealing the contntsof the -containers. When the containers have been coated on their interior surfaces with a sealing y material such as parafn before being packed, I have-found that by proper control of the temperature of the parailin which is applied by the.

apparatus forjsealing purposes,` the outer edges of the covers may be embedded in a homogeneous mass of para-Hin, formed from the paraffin which had formerly been placed on the surface of the containers andthe parai'infapplied by the appa.-

ratus, which when hard in effect solidies the covers with the containers and provides a seal of;Vv

unusual strength which will stand up under rough usage and which will enable the containersto hold airpressure or vacuum over an extended The nature and utility from thefollowing description of the apparatus as designed and used for the just stated purpose,

although evidently it may be used in the sealing `of other types of containers or where a coating of .parafn or other material is to be applied to the containers for purposes other than sealing the covers to the containers.

The accompanying drawings illustrate by way of example a representative embodiment of the invention. In such drawings, Fig. 1 is a side elein; Fig. 5 is -a detailed side view, in section, of a container holder .showing the position of the parts when a lled container is being inserted in I I position therein or being removed therefrom;

Fig. 6 is a detailed front `view of the lgripping mechanism in the container holder; Fig. 7 is a top view vof the parts shown in Fig. 5; Fig. 8 is a side elevation, partly in section, of the level control for the wax bath and Fig. 9 is a detailed section taken along 9-9 of Fig. 1 showing the arrangement of the lower supporting arms on the standard.

Referring more particularly to Fig. 1 of the drawings, the apparatus illustrated comprises a base or pedestal I0 having a raised hub section I I which supports a hollow standard I2 in vertical or upright position. Arranged adjacently to the upper end of the .standard I2 is a circularly shaped table I3 provided with a centrally disposed hub section vI4 through which the upper end portion of the standard extends. Integrally formed with the table I3 and the hub section I4 are radially extending arms or reinforcing braces I5 which render the construction of the table relatively strong and rigid. An upwardly extending annular flange or rim I6, preferably made of wood, is provided on the outer edge portion of the table I3, the upper portion of such flange serving as a track on .which the holders-for the filled containers ride and being formed to enable the holders to dlp the containers into a sealing bath as will be hereinafter more fully explained. The upper end of the standard I2 is'provided with an internal sleeve I1 whose outer surface snugly en, gages with the inner surface of the upper end portion of the standard, the sleeve being positioned-within the standard by an outwardly extending flange I8 .which is formed integrally with the upper end thereof and rests upon the upper end of the hollow standard I2. The interior surface of the sleeve I1 is in snugv engagement 4with the outer surface of the lower endportion of a vertically disposed shaft or stem I9 so that the sleeve functions to securely support said shaft vertically in the upper end of the standard l2. The table I3, the sleeve I1 and the shaft I9 are iixedly secured in position on the upper end of the standard I2 by means of the set screws or bolts 20 which are in threaded engagement with the hub section I4 of the table I3' and extend through said section and through openings in the annular walls of the standard I2 and the sleeve I1 and engage with the outer surface of the shaft I9.

Seated on the flange I8 of the sleeve I1 and encircling the shaft I9 is ,a thrust bearing 2| which supports on its upper race a vertically disposed sleeve 22 which is mounted for rotative movement` on the shaft I9 intermediate of the latters length. The upper end portion 23 of the sleeve 22 which is of smaller diameter than the remainder of the sleeve, is adapted to receive a worm gear 24 having a centrally positioned hub section 25 through which the reduced portion 23`of the sleeve and the upper end portion of the shaft I9 extend. 'I'he worm gear 24 is arranged which is received in a key way formed by slots provided in the hub 29 of the worm gear and the.

reduced portion 23 of the sleeve. Supported on the top end of the shaft I9 is a platform 21 which has integrally associated with the under side thereof a hub or collar 28 adapted to receive the top end portion of the shaft I9, A -set screw or bolt 29 which is in threaded engagement with the hub 23 extends through such hub and engages with the outer surface of the shaft I9 to x the platform in non-rotatable relation with respect to said shaft. An electric motor 39 is mounted on the platform 21 and is securely affixed to the latter by means of the bolts 3| which pass through suitable openings in the base of the -motor and threadedly engage with the platform 21. 'Ihe motor is suitably connected to a source of current to `by the bolts 39 and nuts 4I).4 Mounted on the shaft 36, intermediate the bearings A31 a-nd 38 is a sleeve 42 having its outer surface formed to provide va spiral gear or worm 43.` 'Ihe sleeve 42 is arranged for rotation with the shaft 36 by a key 44 which is received in a key way formed by slots provided inthe inner surface of the sleeve 42 and the outer surface of the shaft 36 and placed in alignment; Thev worm 43 engages with the teeth of the worm gear 24 to drive the latter in a counter-clockwise direction, as viewed in Fig. 2. A thrust bearing 45 is provided on the shaft 36 intermediate the sleeve 42 and the bearing 39 to take care of the thrust in thedirection of the bearing 38 when the parts are in operation.

It will be clear that the parts thus far described are so assembled that when the motor 30 is operating, it will cause the rotation of the sleeve 22 about the shaft I9 in a counter-clock direction, as viewed from the top of the machine, through the medium of the'pulley' 33, belt 34, pulley-35, shaft 36, worm 43 and the worm gear 24. As is more clearly shown-in Fig. 1 of the drawings, the sleeve 22 preferably has an internal diameter slightly greaterthan the diameter of the shaft I9 and is provided with ybrass bushings 46 which are xed to the inner surface of the end portions of the sleeve in order to reduce the friction between the sleeve and the shaft I9 to a minimum. As before described, the shaft I9 is xedly mounted within the sleeve I1 on the upper end of the standard I2 by means of the set screws or bolts 20, and the platform 21 is flxedly A supported upon the top portion of the stationary shaft I9 by means of the set screw 29. The motor 39 is preferably so positioned on the platform 21 with respect to the parts driving the sleeve 22 that the strains produced in the platform 21 during the operation of the machinevwill be substantially Aequalized.

As is clearly shown in Fig. 1 of the drawings, an" outwardly extending iiange or turntable 49 is integrally formed with the lower end portion of the rotatable sleeve 22 and rotates about the shaft I9 with said sleeve when the motor is operating. The turntable 48 is of such diameter and is so positioned with relation to the upstanding iiange or circular rim I6 on thestationary table I3that the. holders 49 for the containers which are pivotally mounted at their inner ends on supporting brackets positioned around the circumferential edge portion of th turntable.'

are enabled to be rotatably supported on the rim I6 intermediate of their front and rear ends, as shown in Fig. 2.

The container holders .49, of which there are ten in the apparatus illustrated, each have their individual supporting brackets consisting of` a.'

base portion 50 which is securely fastened to the edge portion of the table 48 by the threaded bolts Stand two substantially parallel arms 52 which are integral with the base portion at their lower ends and extend obliquely outward from the edge of the table 48, as shown in Fig. 4, the upper ends of said arms being provided with aligned openings which are adapted to receive the ends of a rotatable shaft 53. The shaft 53 extends through a substantially cylindrically shaped portion 54 integral with the underside of a substantially cylindrically shaped section .55 of the holder 49 and positioned transversely thereof adjacent its rear end. The section 55 is in the nature of a hollow bearing and rotatably supports the reduced end portion 56 of ya hollow shaft or stem, generally designated as 51, which4 extends therethrough. 'I'he section or bearing 55 is positioned between a portion 58 of the shaft 51 which has a slightly greater diameter than the portion 56 and a collar 59 securely fastened to the outer end ofthe portion 56 of the shaft so that longitudinal movement of the shaft 51 is prevented. Fixedly attached by means of a set screw to the portion 58 of the shaft 51, intermediate the bearing 55, and a portion 60 of the shaft 51 which has a slightly greater diameter than the portion 58 thereof, is a roller 6I adapted to ride on the upper edge of the flange or rim I6, as shown in Fig. 4, as the turntable 48 is rotated thereby causing rotation of the shaft 51,

Integrally associated with the outer endof the tatably supports a shaft es having mounted there-5` on an angular lever comprising arms 61 and 'Ihe arms' 61, 68 of each angular lever extend 46' through slots provided in the portions 63 and '64 of the head 62 intermediate the bearing supports 65. The outer free end of each of the arms 61 of the angular levers is provided with an cifset portion 69 which is adapted to bear against the inner face of a plunger head 10 positioned within the hub-like portion 63 of the enlarged head 62. The arm 68 of each of thevangular levers extends into the recess provided in the portion 64 vof the head 62 and is provided at its outer end with an outwardly extending off-set portion 1| which is adapted to bear against the inner annular side of the portion 64 of the holder. Seated `on the shoulder 12 formed by the head portion 64 is a spider generally designated as 13, the outwardly extendingar'ms 14 of which are secured at their outer end portionsto the shoulder 12 by means of the screws 15. The side faces 16 of the substantially triangularly shaped central portion .11. of the spider have integrally associated therewith frusto-conically shaped projections 18 which serve as supports for one end of the springs 19, the other ends of such springs being supported on similarly shaped projections formed on the outer end portions of the lever arms 68 and disposed oppositely of the off-set portions 1| thereof. Thus, by reason of this arrangement,l the olfset portions 1l-of lthe lever arms 68 are positively urged by the tension of the springs 19 'toward the inner annular side of the head portion 64, -head portion 64 is adapted to receive the bottom .end portion of a lled container, as Amore clearly shown in Fig. 4, the interior diameter of the annular side of said head portion being approximately the same as the exterior diameter of the bottom end portion of the container sothat the The lever arms 61 and 68.

latter snugly ts in such head portion. When a container is thus seated in the head portion 64, the off-set portions 1| of the lever arms 68 engage with the interiorA side surface of the 'bottom edge portion of the container below the bottom thereof. The springs 19 are sufficiently strong to cause the olf-set portions 1I to,` tightly bear against the interior bottom portion of the container so that the container will not become loosened while passing through the machine. The

vends of the off-set portions which contact with Aits, passage through the machine is prevented.

The central portion 11 of the spider 13 is preferlably` formed so as to limit the forward movement of the plunger 10 and operates as a stop to prevent the teeth on the off-set portions 1| from engaging with the annular sidewall of the head portion 64 when vthe holder is not supporting a container, through the medium of plunger head 10, projection 69 on the lever 'arm 61 and the In order that a container may be inserted in or removed from the holder 49, means are provided to rotate the arms 68 of the angular levers about their shafts 66 toward the axial center of they A cam bears against the inner face of the disc member 82 when the holder 49 has moved to ay predetermined position with respect' to the rim I6, as will be hereinafter more fully explained,

and forcessaid member away from the rear end of the holder, as shown in Fig. 5. As the disc member 82 is moved away from the holder 49, the shaft 8| and plunger head 10 are caused t o move in a rearward direction with the disc member, the plunger head 1li in its rearward movement causing each of the arms 61 of the angular levers to rotate about its shaft 66, in a clockwise direction as viewed in Fig. 5, thereby causing the arms 68 of the angular levers to rotate toward the axial center of the head portion 64 and enabling a container to be either inserted in or removed from the holder 49.

The annularly shaped flange or rim I6 of the stationary table I3 is provided adjacent its upper edge 81 with an upstanding off-set portion 88 which is formed integral with the outer edge portion of the rim I6 and extends around the upper edge of the rim for substantially three-fourths of its circumference. The upper edge of the cifset portion 88 is so positioned with respect to the roller 6| on the holder 49 that said roller vis enabled to ride thereon during the rotational movement of the table 48 and is of such-height that when the roller is riding on its upper edge, the holder 49 is supported in a substantially horizontal position. That portion of the annular flange I6 which is not provided with the off-set portion 88, is beveled along its upper outer edge, as shown in Figs. land 2 to form the inclined edge 89. The ends of the off-set portion 88 are sloped 49 is riding on the beveled edge portion 89, the holder is no longer held in horizontal position but is tilted downwardly a sufficient amount so that the upper edge portion ofthe container is dipped in a bath of wax or other suitable sealing material, as shown in Fig. 1.

The cam 85 for withdrawing the disc member 82 on the holder 49 to enable a container to be removed from or inserted into the holder is mounted on the lower end of a support or depending arm 9| which is securely attached at its upper end to the underside of the platform 21 by screws or other suitable means. As shown in Fig. 2, the arm 9| depends outwardly in an oblique direction from the platform 21 to hold the inner edge of the cam 85 which is arcuately inner edge of the cam 85 is cam faced at 95l to enable the disc members to readily ride upon the inner edge thereof. The cam 85 is preferably of such length that two adjacently positioned holders are always in engagement therewith.

As shown in Figs. 2 and 5, an arcuately shaped rail 92 is provided on the upper edge 81 of Athe circular flange I6. A depending projection or heel 93 formed integrally with the under side of the bearing section 55 of the holder 49 is adapted to ride on such rail and lift the roller 6| from contact with the upper edge of the off-set portion 88 of the circular flange I6 .whereby the holder 49 may be moved about the sleeve 22 without rotational'movement of the shaft 51' and the enlarged head 62 about their own axes. The rail 92 is positioned on the upper edge 81 of the flange I6 so that such non-rotation of the shaft 51 and the enlarged head 62 about their own axes occurs during theperiod that the cam 85 is in engagement with the disc member 82 to hold the oiset portions 1I on the outer end portions of the lever arms 68 in releasing position. The rail 9 2 is preferably sloped at each end to enable the vprojection 93A to4 ride on and oil the rail without any abrupt jerky motions. Integrally associated with the cylindrical portion 54 ofthe bearing section 55 of the holder is an inwardly extending portion or toe 94 which is adapted to operate as a stop to limit the upward movement of the holder 49 thereby preventing any jumping of the holder as the projection 93 rides on or off the rail 92, when the cam 85 engages with the disc member 82 or when the holder rides on or off the inclined tinuous in the apparatus illustrated so that while the apparatus is operating, the holders 49 are continually traveling around the track in a counter-clockwise direction as viewed in Fig. 2, but it is within the contemplation of the invention to move the various parts intermittently. In both the positions designated A and B, the depending projections 93 of the two holders 49 which are in engagement therewith are resting on the track 92 so that the rollers or wheels 6I of the holders are out of contact with the upper edge of the oi-set portion 88 of the rim I6 thereby preventing any rotational movement of the shafts 51 and enlarged head portions 62 of these holdersl about their own axes. In either of the positions A or B, the rear edgel of the cam 85 is bearing against the side face of the disc member 82 of a holder thereby holding the shaft 8| and plunger head 10 of the holder in retracted position. As shown in Fig. 5, the retracted plunger head 18 bears against the projection 69 on the end of the arm 61 of the angular or bell crank lever to hold the latter in its rearward position, thereby holding the arm 68 of the angular lever and the off-set portion 1|` on the outer end thereof disposed toward the axial center of the head portion 64 against the tension of the springs 19. It will thus be clear that a container may readily be inserted into the end of or removed from the holders when the latter are in the positions designated A and B. When the operator inserts the bottom end of a container in the end of a holder sition until the holder has been moved by the table 48 past the end of the cam 85. The release of the'-disc me ber 82 bythe cam 85 releases the shaft 8| andthe plunger head10 and enables the springs 19 in' the head portion 62 to rotate the lever arms 68 about their pivots 66 and to` force the toothed edge portions 1| against the interior surface of the bottom edge of the container, thereby tightly clamping the bottom edge of the container against the annular wall of the head portion 64. The rotative movement of the arms 68 of the angular levers under the influence of the springs 19 simultaneously causes the arms 61'thereof to rotate forwardly and force the projections69 on the arms 61 against the inner face of the` plunger 10 thereby moving the plunger head 10, the shaft 8| and the 'disc 82 forwardly. Upon continued movement of the holder about the sleeve 22 the projection 93 on the holder 49 rides\off the arcuatelyshaped track 92 and enables the roller 6| to contact with the upper edge of the off-setportion 88 whereupon rotational movement is imparted to the shaft 51, the head 62 and the packed container about their central axes.J Further movement of the table 48 brings the holder to the end ofthe off-set portion 88 and the roller- 6| rides down the incline which' connects the upper edge of the off-set portion with vthe inclined edge 89 on the annular rim I6. During the period that the holder ia ridingon .the inclined edge 89 it is tilted downwardly to enable the upperl edge portion of the container to dip in the sealing material contained in the tank 96 to a sufficient depth so that upon continued rotation of the vcontainer about its axis as theV holder moves along the inclined edge 89 a thin even coating of sealing .material is applied to the upper edge portion of the container and the outer .edge portion of the cover' inclined 'edge 89 and onto the upper edge of the I off-set portion 88. The table 48 continues the movement of the holders in a counter-clockwise direction and during such movement the conv25 at the position designated A, he holds it in po- Further rotation tainers are being continually rotated about their 'own axes, such movement causing the sealing lifting the roller clear of with respect to the container holders 49, the posi- 4 material to set evenly around the outer edge of the cover on the container and aids in the drying of the sealing material.` Just prior to reaching the position designated B, the projection 93 with the track 92 thereby its track so that the shaft 51 and the enlarged head 62 of the holder cease to rotate about `their own axes thereby stopping the rotational movement of the container held in such enlarged head about its own axis. The point at which the track 92 will be engaged by the projections 93 of the holder is of on the holder engages course dependent upon the type of sealing material and the thickness of the applied coating and the track 92 is so constructed and arranged with respect to the several cooperating parts that under the conditions which the apparatus is working, the rotation of the holder is continued for a predetermined time after the passage of the container through the sealing material until the applied coating on the container has reached a condition such holder. The cam faced end portion 95 of the cam '85 then engages with the disc member 82 on the holder and retracts the disc member 62,

shaft 8| and plunger head 10 against the tension of the springs 19, these parts being withdrawn to fully retracted lposition when the disc member 82 is engaged with the rear edge of the cam 85 so that the off-set portion 1| on the lever arm 68 in the head portion 62 of the holder is withdrawn from the inner side of the bottom edge portion of the container as hereinabove explained, thereby enabling the operator to remove the sealed container.

The material for sealing the covers on the containers is contained in a tank 96 which is supportj 'ed on the outer end portions of two substantially parallel angle iron arms 91. tions of the angle iron arms 91 are secured the outer side surfaces of two oppositely disposed clamping jaws 98 by means of the two bolts 99, each of which extends through openings provided in the two angle iron arms and the. two clamping jaws and fixedly secure the angle iron arms and clamping jaws in position on the standard I2. The arrangement of the angle iron arms 9 1,clamp ing jaws 98 and bolts 99 with respect to the standard I2 is similar to the arrangement of the angle iron arms |06, clamping jaws |01 and bolts |08 respectively which is shown in Fig. 9 of the drawings. The tank 96 is provided with an overow outlet whereby the level of the sealingmaterial in the tank may be maintained at a predetermined level. As shown more particularly in Fig.

The inner end por- 8 of the drawings, the overflow outlet comprises Aa pipe v| which extends through an opening' in th'e bottom of the tank and is supported in any suitable manner bysuch bottom. The portion of the pipe |00 within the tank 96 rises vertically to a height which hasbeen selected as the lowest level at which the sealing material will be maintained in the tank for this particular operation. A collar or sleeve |0| is secured to the upper end portion of the pipe |00 by means |02. The position of the sleeve |0| may be vertically adjusted to vary the level of the sealing material in the tank. It will thus be clear from the description hereinabove set forth, that the degree to which the container is dipped in the wax e or paraflin can be controlled by varying either the angle at which the edge 89 on the cylindrical track |6 is inclined, the position of the clamping jaws as to permit removal from the.

to l is integrallyformed'with of a set screwv tion of the collar or sleeve |0| on the upper end portion of the overflow pipe |00 or by varying any two or threeofthe above mentioned parts. This .adjustability of the various parts renders the apparatus not only capable of use for sealing containers of differentsizes but also makes it adaptable for use in coating the inner and outer surfaces of empty containers with' parailin or other material to render such containers liquid proof. When the' apparatus is to be used for the latter purpose, the arms 68 'of the ang'ular levers in the enlarged heads 62 of the holders are preferably made of such length that they extend an appreciable distance beyond the annular wallsof the head portions 64 so that the containers which will be thus supported solely by the outer ends of the lever arms 68 may be suitably dipped in the sealing material to accomplish thi's purpose without having the sealing material come into contact with theoperating parts of the holder.

"The sealing material is fed to the dipping tank 96 from a supply tank |05 which is supported on a pair of angle iron arms |06 which are positioned substantially parallel to each other and are secured intermediate their ends to the outer side surfaces of two clamping jaws |01 by means of two bolts |08. each'of which extends through openings provided inthe two angle iron arms and the two clamping jaws and fixedly secure the angle iron arms and clamping jaws to the standard |2, as shown more clearly in Fig. 9.- A guard |09 is mounted on the angle irons |06 as shown in Figs. 1 and 9. i

-A pair of clamping jaws I0 and ||0' are xedly secured to' the standard I2 intermediate the clamping jaws 98 and the clamping jaws |01 and adjacently to the former by meansof the bolts as shown in Fig. 3. The clamping jaw ||0 a bearing bracket support ||4 provided with spaced bearing brackets |22. The clamping jaw ||0' has secured to its outer side surface bymeans of the bolts a I rim adapted to receive a belt or drive H8 is affixed to the outer end of the motor shaft ||9. The other endof outer edge of a pulley wheel |20 afdxed to one end of a shaft |2| which is rotatably supported in the spaced bearings |22 which are integral with the bearing support H4. `".lhe opposite .end of the shaft |2| is provided with a bevel gear |23 which engages with a horizontally disposed bevel Vgear |24 mounted on the upper end of a vertically positioned shaft |25. The shaft |25 is mounted on a bearing bracket |26 which extended portion |21 of the bearing support Ill. Securely fastened |25l by means of a set screw is a sleeve |28 whose lower end portion of the shaft |25 and which isj provided at said lower end portion with two vertically disposed keyway slots positioned in alignment. The sleeve |28 and the hub of the bevel gear |20 prevent vertical movement of thel shaft |25 in the bearing bracket |26 during rotation of said shaft. The upper endv portion of the shaft |29 of the pump |30 which is positioned within the supply tank |05, extends into the l`sleeve |28 and is coupled thereto by means of the pin |3| on said to'the lower end of the shaft v extends below the endthe belt ||8 passes around the is mounted on an trate its nature without limiting its scope depending plate |32 which is mounted at its upper end between the bearing bracket |26 and the extended portion |2`| of the bearing support ||4, extends down into the supply tank |05 and supports at its lower end the pump |30 which is suitably connected thereto by means of bolts. A vertically disposed pipe |33 is suitably coupled at its lower end to the pump |30, the upper end of said pipe being provided with an outlet and positioned so that said outlet will discharge into the dippingtank 96 any sealing material pumped up through the pipe. It will be obvious fromthe above that the motor ||5 drives the pump |30 through thepulley mounted onthe motor shaft ||9, belt H8, pulley gear |23, bevel gear |24, shaft |25, the coupling members |28, |3|, and the pump shaft |29 to pump the sealing material in the supply tank |05 up through the pipe |33 into the dipping tank 96. A bracket |31 supports the upper end of the pipe |33 in proper positionwith respect to the tank 96.

Two heating elements |35 are provided in the supply tank |05 to maintain the sealing material at a predetermined temperature. A heating element |36.is also positioned longitudinally of the dipping tank 96 to maintain the sealing material in this tank at a .desiredjter'nperatura The heating. elements |35 and |36 are-suitably connected to a source of current (not shown). Outlets or drains |31 are provided in the bottoms of the tanks .the sealing material when the apparatus is not 1n use. A It willbe obvious to those skilled in the art that the invention is capable of a wide variety of modification and adaptation and that the present disclosure is intended merely to illuswhich is set forth in the appended claims;

1.' In an apparatus for ,applying sealing material to containers, the combination of a movable support, a. plurality of container -holders pivotally mounted on said support, and adapted to carry containers so that the central'axes thereof project outwardly from the support, each of said holders comprising means adapted to engage one end of a-container and to support the container with its other end projecting freely beyond said holder during the travel of said movable support, means `for revolving the holders so Athat the containers carried thereby are rotated about" their central axes,l a tank containing sealing material positioned close below the path of the containers on said holders, and means for pivoting the container holders about their supports when the 'containers carried thereby are positioned above said tank of so that the free ends. of the rotating containersl are dipped into the sealing volving means being adapted ers andcontainers continuously during the passage of the containers through the sealing material and for a predetermined time thereafter.

2. In an apparatus for applying sealing material to containers, the Vcombination of avmovable support, a plurality of container holders' pivotally mounted 'on said support, and adapted to Carry containers sol that the central axes thereof project outwardly from the support, each of said holders comprising means adapted to engage one end of a container and to support the container with its other end projecting freely beyond said holder during the travel of said movable Support.

|20, shaft m,v bevel 96 and |05 for draining out l v 2,119,720 shaft which engages with the keyway slots. A'

means for revolving the holders so that the containers carried thereby are rotated about their central axes, a Atank containing sealing material positioned closebelow the path of the containers on said holders, and means for pivoting the container holders about their supports to dip the free ends of the rotating containers carried there- I by into said tank, said means being adapted -to maintain thecontainer holders tilted at a predetermined angle from the horizontal during the major portion across the tank, said revolving means being adapted to rotate said holders and containers continuously during'the passage of the containers through the sealing material andfor a predetermined time thereafter.

3. In anapparatus for applying sealing material tocontainers, the combination of a movable support, a plurality of container holders pivotally mounted on said support, each of said holders beingadapted to engagethe bottom end of a container and hold the container so that the central axis thereof. projects outwardly from the support, means for revolving the'holders so that the containers carried thereby are rotated about their central axes, means for rendering sald` holder revolving means inoperative during the' the path through which the containers 'are support, and means for holders to dip therotatmoved by the movable pivoting the container of the travel of the containers ing containers into and remove them from said tank as .the containers are carried along byV said movable support, said revolving means being adapted to rotate said holders and containers continuously during the passage of the containers through the sealing material and for a'predetermined time thereafter.

4. In an apparatus for applying sealing material to containers, the combination of a movable support, a pluralityvpf container holders mounted on said -support for pivotal and rotational movement, each of said holders being adapted to engage the bottom end of a container and hold the container so that the central axis thereof projects outwardly from the support, stationary means engaging with said holders intermediate their ends for supporting the same in substantially horizontal position and for revolving said holders as they are carried along by said movable support .so that the containers on said holders are rotated about their central axes, a tank containing sealing material positioned close be low the path of the containers on said holders, and means for pivoting-the container holders to dip the rotating containers into and remove them from said tank as the containers are carried al'ong by said movable support, said revolving means being adapted to rotate' said holders and containers continuously during the passage of the containers through the sealing material and for a. predetermined time thereafter.

5. In an apparatus for applying sealing material to containers, the combination of a movable support, a plurality of container holders mounted on. said support for` pivotal and rotational movement, each of said -holders being adapted to engage the bottom endjof -a container and hold the container so that the central axis thereof projects outwardly from the support, a track positioned adjacent to said movable support and extending along the pathA of said holders, means on said holders' intermediate the ends thereof adapted to ride on said track and thereby cause rotation of said holders and the containers about their own axes, said track comprising a level portion for supporting the holders in substantially horizontal position and a depressed inclined portion for supporting the holders in tilted position and a tank containing sealing material positioned close below the depressed inclined-portion of the track so that the containers on said holders will be dipped into the sealing material as the holders ride on said inclined portion of the track, said inclined portion and said level portion of the track coacting with the riding means on said holders to rotate the containers continuously during their passage through the sealing material and for a predetermined time thereafter.

6. In an apparatus for applying sealing material to containers, the combination of al movable support, a holder provided with a recessed outer end for receiving the bottom end portion -of a container having its bottom spaced upcarried thereby is dipped into the sealing material in said tank, said revolving means being adapted to rotate said holders and containers continuously during the passage of the `contain-'- ers through the sealing material and for a predetermined time thereafter'.

'7. In an apparatus for applying sealing material to containers, the combination of a movable support, a holder provided with a recessed outer end for receiving the bottom' end portion of a container having its bottom spaced upwardly from the bottom edge thereof, spring tensioned means within said recess adapted to engage with the inner surface of the bottom end portion of the container and to support the containersecurely on the holder, means for pivotally and rotatably supportingthe inner end of said holder on said movable support, means for revolving the holder so that the container carried thereby is rotated about its central axis, a tank positioned close below the path of the container on said holder, and means for pivotingsaid holder about its support so that the rotating container carried thereby is dipped into the sealing materialV in the tank, said revolving means being adapted to rotate said holders and containers continuously during the passage of the containers through the sealing material and for a predetermined time thereafter.

8. In an apparatus for applying sealing material to containers, the combination of a movable support, a holder provided at its outer end with a plurality ofholding members adapted to engage with the inner surface of the bottom end portion of a container having its bottom spaced upwardly from the'bottom edge thereof, means for causing said holding members to bear against Said inner surface of the container withV suiiicient pressure to support the container, means for pivotally and rotatably supporting the inner ends of said holder on said movable Support, means for revolving the holder so that the container carried thereby is rotated about its central axis, 4a tank positioned close below the path of the container on said holder, and means forpivoting said holder about its support soA that the rotating container carried thereby is dipped into the sealing material in the tank, said revolving means being adapted to rotate said holders and containers continuously during the passage of the containers through thesealing material and for a predetermined time thereafter.

9. In an apparatus for applying sealing ma.- terial to containers, the combination of a movable support, a holder provided at its outer end with a plurality of holding members adapted'to engage with the inner surface of lthe bottom end portion of a container having its bottom spaced upwardly from the bottom vedge thereof, means for causing said holding members to bear against said inner surface of the container with suilicient pressure to support the container, means for retracting said holding members toward the axial center of said holder so that a container may be positioned on or removed from said holder, means for pivotally and rotatably supporting the inner end of said holder on said movable support, means for revolving the holder so that the container carried thereby is rotated about its central axis, a tank positioned close below the path of the container on said holder, and means' for pivoting said holder about( its support so that the rotating container carried thereby is dipped into the sealing .material in til e tank,. said revolving means,`

being adapted to rotate s aid holders and con-1:

taners continuously during the passage of the containers through the sealing material and for a predetermined time thereafter. 10. -An apparatus such as set forth in claim 9 including means for stopping the rotation of said holder during the period' that said retracting means has withdrawn the holding members towards the axial center of said holder.

11. In an apparatus for applying sealing material to containers, the combination of a movable support, a holder pivotally androtatably supported at its inner end on said movable support and provided on its outer end with a plurality of holding members adapted to engage with the inner surface o'f the bottom end portion of a container having its bottom spaced upwardly from the bottom vedge thereof, means for causing vsaid holding members to bear against said inner surface of the container with sufficient pressure lto support the container, means for retracting said holding members towards the axial center of-said holder so that'a container may be positioned on or removed from said holder, said meanso comprising a stationary cam adapted to engagek with said holder during a predetermined portion of its travel, means for revolving the hold'er so that the container carried thereby is rotated about its-central axis, a tank positioned close below the path of the container on said lholder, and means for pivoting said holder about its support so that the rotating container carried thereby is dipped into the sealing material in the tank, said revolving means being adapted to rotate said holders and containers continuously during the passage of the containers through 'the sealing material and for a predetermined time thereafter.

portion of a container having its bottom spaced upwardly from the bottom edge thereof, means for causing the outerend portions of said arms to bear against said inner surface of the container with sufficient pressure to support the container,

means for pivotingvsaid arms toward the axial center of said 'holder so -that a container may be positioned on or removed from said holder, means for pivotally and rotatably supporting the inner end of said holder'on said movable support, means for revolving the holder so that the container carried thereby is rotated about its central axis, a tank positioned close below the path of the container on said holder, means for pivoting said holder about its support during its movement with the movable support so that the rotating container carried thereby is dipped into and removed from the sealing material in the tank and means for limiting the upward movevthe recess.

ment of said holder, said revolving means being adapted to rotate said holders and containers continuously during the passage of the containers through the sealing material. and for a predetermined time. thereafter.

13. In an apparatus for applying sealingl material to containers', the combination of a movable support, a holder comprising a hollow shaft having integrally associated with its outer end thereof a recessed head portion adapted to receive the bottom end portion of a container having its bottom spaced upwardlyfrom the bottom edge thereof, a plurality of angularly shaped levers pivotally mounted on s aid head portion and positioned within said recess, one arm of each of said levers projecting. outwardly and the other arm of each of said levers extending toward the axial center of said holder, the outer end of each of said outwardly projecting arms being adapted to engage with the inner surface of thebottomvA end portion of a container, means for causing said arms to bear against said inner .surface of the -container with sufficient pressure to securely clamp the bottom portion of the container against the side wallof the recess, means associated with the axially extendng arms of said levers for pivl oting the outwardly projecting arms of said levers toward the'axial center of said holder so that a container may be positioned in or removed from said recess, means for pivotally and rotatably supporting the inner end of said holder shaft on said movable support, means lfor revolving the holder so that the container carried thereby is rotated about its central axis, a tank positioned below the path of the container on said holder, and means for `pivoting said holder about its support so that the rotating container carried thereby is dipped into the sealing material in the tank, said revolving means being adapted to rotate said holders and containers continuously during the passage of the containers through the sealing material and for a predetermined Vtime thereafter.

14. An apparatus such as set forth in claim 13 in whichthe outer end portions of the outwardly projecting arms of said levers areroughened to enable said arms tosecurely grip the said inner surface of the container, and means to limit the movement of said arms toward-the side wall of 15. An apparatus such in which the means for causing said outwardly extending arms of the levers to bear againstsaidy inner surface of the container comprises a supporting member mounted centrally of said recess and a plurality of springs projecting radially as set forth in claim 1-3 from the axis of rotation of said holder, one end of each of said springs being mounted on said Vsupporting member and the other end of each of ing through said hollow shaft, and means to move said stem and plunger head rearwardly at predetermined intervals to pivot the levers about their supports. 17. An apparatus such as set forth in claim 1 -in which the means for pivoting the outwardly 18. An apparatus such as set forth in claim 13 in which the inner, end of said shaft is supported in a bearing pivotally mounted on said movable support, a track positioned adjacently to said movable support, and an annular member secured to said shaft intermediate its ends and adapted to ride on -said track whereby the shaft of said holder is caused to rotate when moved along by said movable support.

19. In an apparatus for applying sealing materialto containers, the combination of a turntable, a plurality of container holders projecting radially from the axis of rotation of said turntable and adapted to carry containers on their outer ends so that the central axes of the containers project radially from the axis Aof rotation of the for rotating said turntable for moving the containers on said holders-successively over said tankl of sealing material, means for revolving the holders .so that the containers carried thereby are rotated'about theircentral axes, and means for lowering and raising the outer ends of said holders as they are moved across said tank so that the free ends of the rotating containers carried thereby are dipped intoand removed from the sealing materialv in `said tank, said revolving meansbeing adapted to rotate said holders and .containers continuously during thelpassage of the containers through the sealing material and for a predetermined time thereafter.`

20. In-an apparatus for applying sealing material to containers, the combination of a turntable, a plurality of container holders projecting radially from the axis of rotation of said turntable and adapted to carry containers on their outer ends so that the central axes of the con' tainers project radially from the axis of rotation of the turntable, eachof said holders comprising means adapted to engage. one end of a, containerand to support the containerwith its other sol end projecting freely beyond said `holder during the rotational movementl of said turntable, a tank containing sealing material positioned close below the path of the containers on said holders, means for rotating said turntable for moving the containers on said holders successively over said tank of sealing -material and means for revolving the holders so that the containers carried thereby are rotated about their i central axes, said means being adapted to lower and raise the outer ends of said holders as they are moved across said tank so that the free ends of the rotating containers are dipped into and removed from the sealing material in said tank and being adapted to rotate said holders and containers continuously during the passage ofthe containers through the sealing material and for a predetermined time thereafter.

21. In an apparatus for applying sealing material to containers, the combination oLa turntable, a plurality of container holders projecting radially from the axis of rotation of said turntable, each of said holders being adapted to support a container on its outer end so that the central axis of the container projects radially from the axis of rotation of the turntable, means for pivotally and rotatably supporting the other ends of said holders on said turntable, a/tank containing sealing material positioned close below the path of the containers, means for rotating said turntable .for moving the containers on said holders successively over said tank of sealing material, means engaging with said holders intermediate their ends for revolving the same so that the containers carried thereby are rotated about their central axes, and means for lowering and raising the holders about their pivotal supports as they are moved across said tank so that the rotating'containers carried thereby are dipped into and removed from the sealing material in said tank, said revolving means beingA rotatably supporting the other ends of said holdd ers on said turntable, a track encircling said turntable and adapted to support said holders intermediate their ends, said circular track comprising a level portion for supporting the holders in substantially horizontal position and a depressed inclined portion for supporting the holders in tilted position, a tank containing sealing material positioned close below the depressed inclined portion of the track so that the containers on the outer ends of the holders will be dipped into the sealing material, and means for rotating said turntable for moving the holders around on the track whereby the container holders will be rotated about their central axes continuously during the passage of the containers through the sealing material and for a predetermined tim thereafter.

23. In an apparatus for applying sealing material to containers, thecombination of a turntable, a plurality of container holders projecting radially from the axis of rotation of said turntable, each of said holders being adapted to support a container on its outer end so that the central axis of the container projects radially from the axis of rotation of the turntable, means for pivotally and rotatably supporting the other en'ds of said holders on said turntable, an annular member secured to each of said holders Jintermediate of their ends, a stationary track encircling said turntable and positioned with relation to the holders so that said annular members will ride on said track and thereby cause rota.- tion of the holders and the containers about their own axes, said circular track comprising a level portion for supporting the holders in substantially horizontal position and a depressed inclined portion for supporting the holders in tilted position, a tank containing sealing material positoned closely below the depressed inclined portion of the track so that the containers will be dipped into thev sealing material, and means for rotating said turntable for moving the holders varound the track whereby the containers are rotated continuously about their axes during their passage through the sealing material and for a predetermined time thereafter.

24. In an apparatus for applying sealing material to containers, the combination of a turntable, a plurality of container holders projecting radially from the axis of rotation of said turntable, each of said holders being adapted to supporta container on its outer end so that the central axis of the container projects radially from the axis of rotation' of the turntable, a tank containing sealing material positioned closely below the'path of the containers on said holders, means for rotating said turntable for moving the containers on said holders successively over said tank of sealing material, means for raising and lowering the outer ends of said holders as they are moved across said tank so that the containers carried thereby are dipped into and removed from the sealing material in the tank, means for revolving the. holders for revolving the containers carried thereby about their central axes as the containers are carried around by the turntable and means for successively disconnecting each of theholders from said last mentioned means during the delivery of a container to the holder.

25. In an apparatus for applying sealing material to containers, the combination of a turntable, a plurality of container holders projecting radially from the axis of rotation of said turntable, each of said holders being provided with gripping means on its outer end adapted to securely support a container so that the central axes thereof project radially from the axis of rotation of the turntable, means pivotally and rotatably supporting the other ends of said holders on said turntable, a track encircling said turntable and adapted to engage with said holders intermediate their ends, means for rotating said turntable for moving the holders around on the track whereby4 said holders will be rotated about their central axes, a tank containing sealing material positioned close below the path of the containers on said holders, means for successively pivoting the holders about their sup-` holders from said circular track thereby ceasing the r otational movement of said holders about their own axes.

26. An apparatus such as set forth in claim 25 4 and including means'for holdingfthe'gripping meansA on said containers in non-gripping position atl predetermined intervals so that a container may be delivered to or removed from said holder.

27. An apparatus such as set forth in claim 25 in which axially movable means are provided in each of said holders for controlling the opera- ."tion of said gripping means on "the outer ends of said holders, an arcuately shaped cam adapted to engage with said axially movable means on said holders and hold said gripping means in nongripping position so that a container may; be delivered to or removed from the holders, said l cam being so'positioned with relation to said lmounted on said support, and adapted tocarry containers so that the central axes thereof project outwardly from the support, each of said holders comprising means adapted to engage one end of the container and to support thel container with its other end projecting freely beyond. said holder during the travel of said movable support, means for revolving the holders so that the containers carried thereby are rotated about their central axes, a tank containing sealing material positioned close below the path of the holderslso that' the free-ends of the rotating containerson said holders may be successively dipped into the sealing material and means co-acting with aid' holders to cause them to dip the containers only Apartially in the sealing material so that their axes form an acute angle with the surface of the sealing material while such holders are traveling across the tank of sealing material,-said nevolving means being adapted to rotatesaid holders and containers continuously during' the passage ofthe containers through the sealing material and for a predetermined time thereafter.

29. In an apparatus for applying se'aling material to containers, the combination of a movable support, a container holder mounted on said movable support'and adapted to carry a container on its outer end sov that the central axis thereof projects outwardly from the support,` said holder comprising means adapted to engage one end of a container and, to support the container l' Withits other end projecting freely beyond Isaid holder during the travel of said movable support, means for revolving the carrying end of said holder so that the container carried thereby is rotated about its central axis during the move-- ment of the support and means for applying sealing material to the containerl -including mechanism for changing the angle at which the,

container holder is disposed with relation to said support during the application of the sealing material so that the container is tilted downwardly during this operation, said revolving means being adapted to rotate said holders and containers continuously during the passage of the containers through the sealing material and for apredetermined time thereafter. I I

30. In an apparatus for applying parailin to containers, the combination of a conveyor, container carriers on the conveyor pai-taking of the movement'thereof, each of said carriers comprising means adapted to engage one end of a container and to support the container lwith its other end projecting freely beyond said carrier during the travel of Asaid conveyor, means adapted to apply parailin to the containers including mechanism for successively changing the angle at which- 31. Inan, apparatus for applying sealing material to containers, the combination of an endless conveyor, a, plurality of container carriers on the conveyor partaking of :the movement thereof, a tank 'for containing sealing material, means for tiltingeach carrier as it is traveling across the tank to dip the container carried therelby into the sealing material, means for rotat ing the carriers during the movement of the conveyor so that the containers are rotated continuously about their central axes during the application of the sealing material -thereto and for a lpredetermined time thereafter and means adapted to inhibit the imparting of rotative movment to said carriers by said last mentioned `means after such period oi.' time without eiecting the movement of said carriers by said conveyor. y 32. In an apparatus for applying sealing material to containers, the combination of an endless conveyor, a pluralityv of container holders on the conveyor partaking of the movement thereof and adapted to carry containers so that the central axes thereof project outwardly from the conveyor, each of said holders'comprising means adapted to engage one end of acontainer and 'to support Ythe container with its other end projecting-freely beyond said holder during the travel of said conveyor,`a tank for containingv sealing material, \means for tltingeachholder as it is traveling across the -tankto dip the container carried thereby into the sealing material so that a portion only of the container is immersed in the sealing material. means for rotating the holders during the movement of the conveyor so that the containers are rotated continuously about their central axes during the application of the sealing material theretov andfor apredetermined time thereafter and-means adapted to stop the axial rotation of the containers after such period of time, while enabling them to continue partaking of the movement of said conveyor. 33. In anapparatus for applying sealing material. to containers, the combination of an endless conveyor whose rotational movement lies in a substantially horizontal plane, a plurality of container holders on the conveyorpartaklng of the movement thereof and adapted to carry containers so that the central axes thereof project sition for a predetermined period during .the movement of the conveyor, means for rotating the holders during the movement of the conveyor so that the containers arel rotated continuously during the application of the sealing material thereto and for a predetermined time thereafter and means for disengaging said holders from said last mentioned means after such period of time without effecting the movement of said holders by said conveyor.

34. In a machine forl sealing illled containers having paper bodies and closure members closing the lling ends thereof, the combination of a traveling conveyor, a plurality of container holders thereon traveling with said conveyor,v each of said holders comprising means adapted to engage a lled container backward of its closure member and to support such container during travel of the conveyor, a tank containing sealing material located close below the path of travel of said containers, means to depress said holders as the containers are traveling across the tank to submerge a portion of the containers forwardly of said holders in the sealing material, means to rotate said containers about their central axes during submersion in the sealing material so that a coating of such material is applied to the lling ends of the containers and to the peripheral edge portions of the closure members thereof, said last-mentioned means being adapted to rotate the containers for a predetermined time after such submersion of the containers and means to stop the axial rotation of the containers after such period lof time without effecting the movement of said holders by said traveling conveyor.

35. In a machine for sealing lled containers having closure members' closing the illling ends thereof, the combination of a traveling conveyor, a plurality of container holders thereon traveling with said conveyor, each of sal-d holders comprising means adapted to engage a illled container backward of its closure member and to support such container 'with the illling end thereof projecting beyond the holder during the travel of the conveyor, a tank containing sealing material located close below the path of travel of said containers, means to tilt said holders successively as the containers are traveling across the tank to dip the containers in the sealing material, means to rotate said containers about their central axes during the application of the sealing material so that a coating of such material is `applied to the filling ends of the containers and to the peripheral edge portions ofthe closure members thereof, said last-mentioned means being adapted to rotate the containers fora predetermined time after the application of the sealing material and means to stop the axial rotation of the containers after such period of time.

JAMES D. REIFSNYDER. 

